Automatic pistol



'F. FEEDERLE. AUTOMATIC PISTOL.

APPLICATION FILED JUNE I7, I921.

Patented Alig. 29, 1922;

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AUTOMATIC PISTOL.

APPLICATION FILED JUNE 17, 1921.

Patented Aug. 29, 1922.

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APPLICATION FILED JUNE I7, 1921.

Patented Aug. 29, 1922 3 SHEETSSHEET 3.

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FIDEIL FEEDERLEIOF OBERNDORF-ON-THE-NECKAB, GERMANY, ASSIGNOR T0 WAFFENI'ABRIK MAU'SER, AKTIENG$ELLSCHAF1 OF OBERNDORF-ONs THE-NECKAB, GERMANY.

AUTOMATIC YISI'OL.

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To allwhomitmwy com-em: 7

Be it known that I, FIDEL FEEDERLE, engineer, citizen of the German Republic, residing at Oberndorf-on-the-Neckar, Germany, have invented certain new and useful Improvements in Automatic Pistols (for which application was filed in Germany on October 4, 1917, Serial No. W. 49,847, in the name of Waffenfabrik Mauser, Aktiengesellschaft, of Oberndorf-on-the-Neckar, Germany, with my knowledge'and consent), of which the following is a specification.

This invention relates to automatic pistols with movable barrel and an interlocking member or block arranged to move in the lock frame and to interlockthe barrel and the breech obturating member or bolt. The object of the invention is to vefiect improvements in this type of pistol which are more particularly hereinafter described.

The invention is shown in the drawing in Fig. 1 illustrates the improved automatic pistol partly in longitudinal section with the hammer in its cocked position,

Fig. 2 is a rear end view,

Fig. 3 a cross section on the line A-B of Fig. 1,

Fig. 4 a ing block,

Fig. 5 a perspective View of the lock fastener and the trigger,

perspective view of the interlock- Fig. 6 is a more detailed view of parts of Fig. 1 showing the action of the trigger and its spring on the magazine fastener.

Figs. 7 and 8 are longitudinal sections of the firearm as seen from the side opposite to that shown in Fig. 1, Fig. 7 illustrating the pistol inits normal position with the hammer cocked, whilst Fig' 8 shows the position of its parts after the. recoil of the turating member or bolt arranged to slide I Specification of Letters Patent. Patented Aug, 29, 1922. Application filed June 11, 1921. semi-no. 428,349. 77

in the bolt chamber, 4 the lock frame, 5 the lock housing, 6 the interlocking block, and 7 the lock fastener. The latter takes the form of a slide member that is adapted to slide in a vertical direction on a part of the lock housing situatedat the front of the trigger. Pivota 1y mounted intermediate its ends, as

.at 8, in a longitudinal recess formed in the to face of the illustrated slide member 7 1g.'5) is a lever 8,whose forward arm is acted upon by helical spring 9 (Fig. .1) which fits in a vertical socket in said slide that opens into the above-mentioned recess, said spring keeping the front end of the lever 8 constantly raised and the rear end constantly pressed downward against the trigger 10. Hence the lever 8 and its spring 9 form tensioning members for the trigger, which latter is pivoted in the lock frame by means of its pintles 10'; and it will also be apparent that the slide 7 may be regarded as suspended by the rear arm of the lever 8 on the top face of the trigger, while being guided in front in the trigger bow in the vertical direction. The size of the forward arm of the-lever 8 is such that, when the trigger is pulled, i. e. when the said forward arm is moved downward, it engages with the notched upper end of the ma azlne fastener 11, as shown in Fig. 6, an prevents the magazine from being unintentionally released, as by vibrations arising during discharges. t

Due to the pivotalsuspension of the slide, by means of the lever 8 as above explained, on the top face of the trigger, and to the upward pressure exerted by the spring 9 against the front arm of the lever, the said spring and lever will conjointly act to hold the slide in its top position in which it engages with the downwardly extending projection 12 of the lock frame 4 and thus locks said frame in place. The lower end of the lock frame fastener. 7 is serrated at its side that faces the trigger so as to enable it to be conveniently pulled downward with a finger forv the purpose of disengaging it from shoulder 12 so as to permit the removal of the lock-frame 4 when taking the firearm to pieces in the known manner.

The usual rod-lever or sear 13, Fig. 7 is pivotally mounted in the detachable lockframe 4 which is held firmly in position in the firearm. At its rear end the sear 13 has a lateral projection 14 (Fig. ,9) which is adapted to en age with a catch 15 of the hammer 16. he sear, which has another lateral projection 17 at its front end (Fig. 9

that rests upon the trigger 10 (Fig. 7), is a fected by a spring 18 in such a way that it automatically engages with the catch 15 of the hammer when the latter is cocked. Also pivotally mounted in the lock-frame 4 above the sear 13 is a second lever or sear 19 which is also pressed by the spring 18 of the sear 13 into a position in which, when the hammer 16 is moved back into its tensioned or cocked position, a rear lateral projection 20 of the sear 19 engages with the front stopping surface 21 of the hammer (Fig. 9). The sear 19 has a projection 22 at its front end, and the dog 23 on the interlocking block 6 cooperates with this projection 22 when the obturating bolt 3 reaches the obturating position.

In accordance with the invention the interlocking block. 6 is made of a solid piece and has a front projection 24 that enters into a slot 25 in the lock-frame 4 (Fig. 1). Two abutting surfaces 26 '(Fig. 4) at the sides of the pro ection 24 are pressed by the striking spring 27 with the aid of a pivoted hook 28 against surfaces of the lock-frame 4 situated at both sides of the said slot 25. When the interlocking block 6 is in this position it is held firml in the lock-frame'4 and cannot fallout w en the pistol is taken to pieces.

When the parts of the pistol are in their normal positions two top projections 29 on block 6 (Fig. 1) engage with notches 36 in the lower surface of the obturating bolt 3 so that the .block is coupled with the bolt.

The bolt chamber 2 which consists in a known manner of a prolongation of the barrel 1 has a downwardly extending projection 30 that abuts against a front surface of the interlocking block 6 so that on the recoil of the barrel due to a discharge the interlocking block is moved backward against the action of the striking spring 27 and its rear downwardly projecting cam 31 (Fig. 1) is pressed down into a cavity in the lock-frame 4. When this movement is completed the obturating bolt 3 is released and moves back alone whilst the barrel is arrested.

During its displacement upon the lock housing 5.the bolt chamber 2 is guided in slides arranged at the front and rear of the lock. In the illustrated type of pistol the front slide consists of a .L shaped rail 32 integral with the barrel 1 or with the boltchamber 2. As shown in Fig. 3 the said rail slides in a groove of corresponding shape at the front end of the lock housing 5.

The rear guide member of the lock-chambe! consists of a tongue 33 (Figs. 1 and 2) 7 more advantageous shape of the weapon results.

The mode of operation of the aforedescribed parts is, in general known, so that a detailed descriptionis unnecessary.

This mode of operation only differs with respect to the two bar levers or sears l3 and V 19 whose operation, when the weapon is discharged, is as follows: 1

1. W'he'n firing single shots.

When a shot is fired the barrel 1, which is coupled with the bolt 3 by the engagement of the projections 29 on the block 6 in the notches 36 in said bolt moves back with the block and bolt 3 until the cam 31 at the rear end of the block enters into the previously mentioned cavity in the lock frame 4. At this moment the coupling between the obturating bolt and, the barrel ceases, due to the disengagement of the projections 29 from notches 36, the motion of the barrel now being stopped by the detained locking block 6 against which the downwardly extending projection 30 of the barrel strikes. The bolt member 3 continues its backward movement alone and cocks the hammer 16 (Fig. 8). By the rear lug 14 on the sear or rod'lever 13 engaging with the catch 15 of the hammer, this latter is then held in its cocked position. The obturating bolt 3 is now pushed forward in a known manner by its thrust spring 35 (Figs. 7 and 8) that was tensioned during the backward motion of the bolt. The forward motion of the bolt continues until its notches 36 are opposite the projections 29 of the interlocking block 6 when these projections will automatically fly into the. said notches, due to the known spr' action of the block, and the obturating bolt and the barrel will be recoupled to each other so that the bolt and the barrel move forward together until the downwardly extending projection 30 of the barrel strikes against the top 37 on the lock-frame 4 (Fig. 7

of the barrel. These operations recur each time the trigger 10 is pulled.

2. Firing uninterrupted series of shots.

To do this it is only necessary to keep the trigger pulled back into theposition shown in Fig. 8 so as to prevent all engagement between the sear 13 and the catch of the hammer. In such -cases the-hammer 16, each time it is cooked by the recoil of the obturating bolt 3, will be held for awhile in its projection 22 of the lever 19 and raises the rear end 20 of the latter above the retaining surface 21 of the hammer against the action of the sprin 18, the hammer will be released and fly forward to fire 0E a new cartridge. These operations recur automatically and without interruption as long as Fig. 8.

I claim: 4 a

1. In an automatic pistol, a movable barrel, an obturating member adapted to slide in a prolongation of the said barrel, a lock-housmg, aremovable lock-frame in the said lockhousing, a movable interlocking block in the said frame adapted to couple the barrel and the obturatin member to each other, a trigger guard, a ownwar'dly extending projection on the said lock-frame, and a vertically movable member at the front of the trigger normally engaged with the said downwardly extending projection to secure the lookframe in the lock-housing.

2. In an automatic pistol, a movable barrel, an obturating member adapted to slide in a prolongatlon of the said barrel, a lock-housing, a removable lock-frame in the said lock-housing, a movable interlockthe trigger 10 is kept pulled as shown in ing block in the said frame adapted to couple the barrel and the obturating member to each other, a trigger guard, a down-- wardly extending pro ection on the said lock-frame, a vertically movable member at the front of the trigger cooperating with the said downwardly extendin projection and adapted to. secure the lockrame in the lock-housing, a trigger, a spring and a pivotally mounted lever in the vertically movable member, the spring being adapted to kee the rear end of the said lever pressed aga nst the trigger, a cartridge magazine and a magazine fastener, the front end 0 the said lever beingadapted to lock the said fastener when the trigger is pulled.

3. In an automatic pistol, a movable barrel an obturatin' member adapted to slide in a rolongatlon of the said barrel and to recoil when the pistol is fired, a lockhousing, a removable lock-frame in the said lock-housin .a movable interlocking block in the sai frame adapted to couple the barrel and the obturating member to each other, a trigger guard, a downwardly extending pro ection on the said lock-frame, a. vertically. movable member at the front of the trigger cooperatin with the I said downwardly extending pro ection and adapted to secure the lock-frame in the lockhousing, a trig er, a hammer, means for cooking the sa1 hammer, a primer sear for keepin the hammer in its cocke posi- .tion and a apted to be disengaged from the hammer as long as the tri ger is kept pulled, and a secondary sear a apted to hold the hammer in its cocked position during the recoil of the said obturating member and to be moved out of en agement with the hammer by the said inter ocking block when the obturating member returns from the recoil into its front position.

4. In an automatic pistol, a movable barrel, an obturating member adapted to slide in a prolongation of the said barrel, a lock-housin a removable lock-frame in the said lockousing, a hammer actuating sprin an interlocking block movable in the said ame adapted to couple the barrel and the obturating member to each other, supporting surfaces in the look-frame and corresponding supporting surfaces on the said interlocking block, the block being pressed with its supporting surfaces against the supporting surfaces of the lock-frame and being thus held so as to be freely movable in the lock-frame, a trigger guard, a downwardly extending projection on the said lock-frame, and a verticall movable member at the front of the trigger cooperating with the said downwardly extendin pro ection and 1 adapted to secure the lookrarne in the lockhousing. I

5. In an automatic pistol, a movable barrel, an obturating member adapted to slide in a prolongation of the said barrel, alock-housing, a removable lock-frame in the said lock-housing, a. movable interlockng block in the said frame adapted to couple the barrel and the obturating member to each other, a trigger guard, a downwardly extending pro ection on the said lock-frame, a vertically movable member at the front of the trigger cooperating with the said downwardly extending pro ecti n and adapted to secure the lock-frame in the lock-housing, guide members on the barrel and its prolongation, each said guide member comprising a bar of J. shaped cross section, and grooves in the lock-housing adapted to embrace the said bar,

6. In an automatic pistol, the combination of a movable barrel; a bolt slidable therein; a lock frame; an interlockin block.

movable in said frame and engagea 1e directly with the bolt to couple the latter to the barrel to move together during the in itial portion of the recoil movement of the barrel; a sprin operative upon said block constantly ten ing to effect such engagement; means for automatically disengaging said block from said bolt when the said initial portion of its recoil movement has been completed; and a return spring for said bolt, the first-named spring automatically re-engaging said block and bolt during the last portion of the return movement of the bolt, whereby the barrel is returned to normal osition.

7. In an automatic pistol, the combination of a movable barrel; a bolt slidable therein and formed with one or more notches; a lock frame provided with a cavity; an interlocking block movable in said frame and having one or more rojections for engagement in said notc es to couple the bolt and barrel together to move as a unit during the initial portion of the recoil movement of the bolt, said block having a lug which is movable into said cavity at the completion'of the said initial portion of the recoil movement of the bolt to disengage said projections; a return spring for the-bolt; and a spring operative upon said block to Withdraw said lug from said cavity and re-engage said pro ections and notches during the last portion of the return movement of the bolt, whereby the barrel is returned to normal position.

8. In an automatic pistol, a movable barrel; a bolt slidable therein; a removable lock frame; a housing wherein said frame is mounted and comprising a trigger guard; a projection on said frame; a trigger; a hammer associated therewith; and a vertically movable member arranged in said housing in front of the trigger and engaged with said projection to secure the frame in the housing. 1

9. In an automatic pistol, a movable barrel; a bolt slidable therein; a removable lock frame; a housing wherein said frame is mounted-and comprising a trigger guard; a pro ection on said frame; a trigger; a

hammer associated therewith; a vertically movable member arranged in said housing in front of the trigger and normally en- "gaged with said projection to secure the frame in the housing; a cartridge magazine; a magazine fastener; and means carried by said movable member for locking said fas-.

tener when the trigger is pulled.

10. In an automatic pistol, a movable barrel; a bolt slidable therein; a removable lock frame; a housing wherein said frame is mounted and comprising a trigger guard;

a projection on said frame; a trigger; a hammer .associated therewith; a vertically movable member arranged in said housing in front ofthe trigger and normally engaged with said projection to 'secure' the frame in the housing; a cartridge magazine; a magazine fastener; a member for locking said fastener; and a spring for holding said locking member in contact with the trigger tov enable the latter, when pulled, to operate the locking member.

11. In an automatic pistol, the combination of a lock housin comprising a'trigger bow; a removable fiock frame in said housing; a trigger pivotally mounted in the lock housing; a vertically movable member disposed in the tri ger bow in front of the trig er and slidab engaged with a part of t ehousing to e guided thereby, said member being pivotally suspended upon the top face of the trigger; and a depending projection on the lock frame normally engaged by said member to secure the lock frame in the housing.

12. In an automatic pistol, the combination of a lock housing comprising a trigger bow; a removable lock frame in said with said projection to secure the lock frame in the housing.

13. In an automatic pistol, the combination of a lock housing comprising a trigger how; a removable lock frame in said housing; a trigger pivotally mounted in the lock housing; a vertically movable member disposed in the triggerbow in front of the trigger and slidably engaged with a part of the housing to be guided thereby; a lever pivotally connected to said member and having one end engageable with the top face of the trigger to provide a pivotal suspension mounting for said member on said trigger face; a depending projection on the lock frame; and a spring bearing against the other end of the lever to normally hold its first-named end in such engagement, said sliding member being normally held in raised position with its upper end engaged with .said projection to secure the lockframe in the housing.

14. In an automatic pistol, the combination of a movable barrel; a bolt slidable therein and adapted to recoil when the pistol is fired; a member for coupling the barrel and bolt together; a. trigger; a hammer; means for cooking the hammer; a primary sear for keeping the. hammer in its "cocked position and adapted to be disengaged from the hammer as long as the trigtion.

t pulled; and 'a secondary sear to hold. the hammer in its cocked during the recoil of the bolt and to 'ger is kep 5 adapted position be moved out of engagement with the ham- FIDEL FEEDERLE. 

